Home / 388,306.32-536,028.03-261,055.71

Finding the Fourth Proportional to 388,306.32, 536,028.03 and 261,055.71

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Solution

The fourth proportional to 388,306.32, 536,028.03 and 261,055.71 is: 360,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,306.32 : 536,028.03 = 261,055.71 : x
  2. Step 2: Convert to fraction form
    388,306.32/536,028.03 = 261,055.71/x
  3. Step 3: Cross multiply
    388,306.32x = 536,028.03 × 261,055.71
  4. Step 4: Simplify right side
    388,306.32x = 139,933,177,951.55
  5. Step 5: Solve for x
    x = 139,933,177,951.55/388,306.32
  6. Step 6: Final answer
    x = 360,368.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.